#include "../csapp.h"

#define NITERS 100000000
void *count(void *arg);

/* shared counter variable */
unsigned int cnt = 0;

int test_badcnt()
{
	pthread_t tid1, tid2;
	
	Pthread_create(&tid1, NULL, count, NULL);
	Pthread_create(&tid2, NULL, count, NULL);
	Pthread_join(tid1, NULL);
	Pthread_join(tid2, NULL);
	
	if (cnt != (unsigned) NITERS*2)
		printf("BOOM! cnt=%d\n", cnt);
	else
		printf("OK cnt = %d\n",cnt);
	
	return 0;
}

/* thread routine */
void *count(void *arg)
{
	int i;
	
	for (i = 0; i < NITERS; i++)
		cnt++;
	return NULL;
}








